Effect of Neutron Irradiation on the High Temperature Operation of Injection Laser Diodes

摘要

Certain optoelectronic applications for which it would be desirable to use an injection laser diode (ILD) require that the light source be exposed to a combined hostile environment of both radiation and high temperature. Because of the complexity of ILD's it is very possible that these two hostile components will have detrimental synergistic effects on the laser. We have studied the effects of fast neutron irradiation on the high temperature (T less than or equal to 100 degrees C) operation of ILD's. In general, it was found that the ILD's were more sensitive to irradiation at higher temperatures, and that the lasers with the least temperature variation in threshold current were the least sensitive to irradiation. (ERA citation 09:048338)